Turnover supply roll stand



March 22, 1960 J. R. BAUMGARTNER ErAL TURNOVER SUPPLY ROLL STAND FiledJune 6, 1957 6 Sheets-Sheet l NVENTORS P BY paula/,9m F\ G. 6 Ms March22, 1960 J. R. BAUMGARTNER ETAL 2,929,572

TURNovER SUPPLY ROLL STAND Filed June 6, 1957 6 Sheets-Sheet 2 March 22,1960 J. R. BAUMGARTNER ETAL 2,929,572

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l= Q INVENToRs 09 R www March 22, 1960 J. R. BAMGARTNER ETAL 2,929,572

TURNOVER SUPPLY ROLL STAND 6 Sheets-Sheet 4 Filed June 6, 195'?INVENTORS n mm.

March 22, 1960 J. R. BAUMGARTNER ETAL 2,929,572

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March 22, 1960 J. R; BAUMGARTNER ETAL 2,929,572

TURNOVER SUPPLY ROLL STAND Filed June 6, 1957 6 Sheets-Sheet 6 nitedStates Patent TURNOVER SUPPLY ROLL STAND .lohn R. Baumgartner and PeterZernov, Milwaukee, Wis.,

assignors to Mercury Engineering Corporation, Milwaultee, Wis., acorporation of Wisconsin Application June 6, 1957, Serial No. 663,961

4 Claims. (Cl. 242-58) The invention relates to turnover supply rollstands and more particularly to such stands as used to carry heavy boxboard supply rolls to permit the ready unwinding or feeding od of thestock from one or the other of the rolls.

ln supply roll stands of the type above mentioned the heavy supplyrolls, that may weigh 8000 pounds apiece, for example7 put heavy strainson the supporting shaft so that deections in this shaft cannot beprevented. It is, however, desirable to adjust this shaft lengthwise ofits supports to bring the stock of the rolls into proper alinement withthe stock feed mechanism of the machine supplied by these rolls. Oneobject of the invention is to provide a novel roller support for thestock supporting shaft that permits its lengthwise adjustment withoutbinding.

A further object of the invention is to permit an individual adjustmentof each roll carrying arm to bring the roll carrying chuck members to aposition where they can be brought into proper chucking relation withthe supply roll to be carried.

A further object of the invention is to provide fluid pressure operatedmeans for holding the roll carrying chucking members in journalledengagement with its stock roll with means for regulating the fluidpressure so that less pressure may be used as the stock is used up.

A further object of the invention is to provide an adjustably controlledpower operated brake to prevent the stock roll from overrunning andmaintain the desired tension in the stock as it is fed off of said roll.

The invention further consists in the several features hereinafterdescribed and more particularly defined by claims at the conclusionhereof.

in the drawings:

Fig. l is a side elevation view of a roll stand embodying the inventionand a portion of the machine supplied with stock therefrom;

Fig. 2 is a detailed side elevation view of the roll stand, parts beingbroken away;

1Eig. 3 is an end elevation view of the roll stand, parts being brokenaway and parts being shown in section;

Fig. 4 is a detailed vertical sectional view taken on the line 4 4 ofFig. l;

Fig. 5 is a detailed vertical sectional view taken on the line 5-5 ofFig. 2;

Fig. 6 is a detailed vertical sectional view taken on the line 6 6 ofFig. 4;

Fig. 7 is a detailed vertical sectional View taken on the line 7 7 ofFig. 4;

Fig. 8 is a detailed side elevation view of the brake mechanism, partsbeing broken away;

Fig. 9 is a detailed vertical sectional view taken on the line 9--9 ofFig. 8;

Fig. l() is a detailed vertical sectional view taken on the line itl-10of Fig. 9;

Fig. 1l is a detailed vertical sectional view taken on the line 11-11 ofFig. l;

Fig. l2 is a fluid pressure power diagram.

.rice

As in all turnover roll stands of this general type, the stand isdesigned to carry a supply roll R at the ends of a pair of tiltable rollcarrying arms i3 and 14 so that, when stock is being carried off of oneof the rolls, another roll may be connected to the arms.

Referring to Figs. l to 3, a pair of spaced uprights 15 are provided inwhich a supporting shaft 16 carrying the arms i3 and 14 is mounted, theshaft 16 being turnable to dierent angular positions by a reversibleelectric motor 17 suitably mounted on one of the uprights and having asuitable geared down connection including an output shaft 18 providedwith a gear 19 meshing with a gear 2t) on a transmission shaft 2isuitably mounted in bearings carried by said upright and a frame bracket22 secured to said upright. The shaft 21 carries a long gear 23 thatmeshes with a large gear 24 that is secured to the shaft )i6 by clampingbolts 2S and a key 26.

Referring to Figs. 4 and 5, each end of the shaft 16 is of reduced crosssection. Cncv of these reduced end portions has 'the inner races of ballbearing journals 27 mounted thereon and spaced apart by a sleeve 28,this assembly being clamped in position by an end cap 29 clamped againstthe outer of said bearing journals by cap screws 30, the outer races ofsaid bearings 27 being fixed to an outer sleeve member 31. The other ofsaid reduced end portions has the inner races of ball bearing journals32 mounted thereon and spaced apart by a sleeve 33, this assemblytogether with a short spacer sleeve 34 being clamped in position by anend cap 35 that is clamped against the outer side of the hub of the gear24 by cap screws 36, the other side of said hub abutting the sleeve 34.The outer races of the bearing journals 32 are fixed to a sleeve 37. Theshaft 16 is supported in the uprights 15 by a supporting connectionbetween the sleeve 31 or 37 with its associated upright.

The supporting connection of each sleeve 3l or 37 with its upright beingthe same, a description of one such connection will suffice. Referringto Figs. 4 and 6, I have shown the sleeve 31 as mounted between a seriesof equidistantly spaced radially disposed rollers 3S whose faces arecurved to fit the curvature of said sleeve. Each roller 33 has a rollerbearing journal 39 mounted on a shaft member 4i? whose ends 41 and 42are eccentrically disposed relative 'to the axis of the roller carryingportion of the shaft and mounted in arms 43 carried by the upright. Eachshaft member 4i) is in the form of a bolt which has a shoulder 44 at oneend so that it may be clamped in the desired adjusted position relativeto one of said arms 43 by a nut 45 and washer 46, the eccentric mountingof said shaft members 40 permitting an adjustment of the rollers 33relative to the sleeve 31 so as to accurately center this end of theshaft 16 with the other end of the shaft which is equipped with similarrollers for the sleeve 37. The above arrangement simplilies the mountingof the rollers as it permits the brackets 43 being welded to the frameand obviates the making of a carefully located bore in said brackets forthe roller carrying pin. These sets of supporting rollers 38 at each endof the shaft permit a lengthwise movement of the shaft 16 relative tothe uprights 15.

For moving the shaft 16 to any desired lengthwise position relative tothe uprights, the sleeve 3l has feed screw mountings 47 and 4S thereonadapted to receive'a feed screw 49 that works in a nut 50 iixedlymounted in a wall of one of the uprights 15, said screw being heldagainst lengthwise movement relative to mounting 47 by a pair of spacedcollars 51 and 52 secured thereto, the collar 52 forming the hub of ahandwheel 53. Turning of the handwheel 53 will through the xedlypositioned nut 5t) act to move the sleeve 31 and consequently the shaft16 to the right or left of its position shown in Fio. 4 to per 3 mit thearms 13 and 14 to be positioned to bring the supply rolls carriedthereby into the desired stock feeding position.

As the width ofstock/Vrolls vary, means are provided for varying thelengthwise position of each arm 173 or 14 relative to the shaft 16. Ineach instance this means includes a rack 54 tixedly mounted in a keywayinV the shaft 16 and keyway in the'arm and meshing with a gear 1,

55 carried by a shaft 56 journalled in the arm, said shaft 56 having anexteriorly disposed wrench engaging head 57 so that the turning of theshaft 56 will through the rack 54 cause arlengthwise movement of the arm13 or 14 relameans of roller journal bearings 62. Shaft 61 carries abrake disk or plate 63 adapted to be engaged on one side by Vbrakelining 64 on a brake member 65 and on its Y other side by similar lining66 on a. brake member 67. yThe members 65 and 67 have cooperative hingebosses 58 and the arm 14 hinge bosses 69adapted to receive a hinge pin76. Where pin 70 extends through the hinge bosses V6h, it is formed aseccentrics 70a so that by the Y angular adjustment of said pin relativeto said bosses the operative relation and hence the brake clearance ofthe membersr6 and 67 relative to each other may be deteri mined. It willbe noted that either of the brake Vmembers actually can swing relativeto the pin 70. To apply the' brake, an air cylinder 71 yis mounted onthe upper end ofthe brake member 65 Vand has a piston 72 working ly movethe piston 72 to a brake reease position.

Referring to Figs. 3 and ll, a chuck including a roll AengagingV chuckplate 75 and its supporting shaft 76 is slideably mounted in each end ofthe arm 13 in bearings 77, said shaft forming the rodV end of a pistonV78 working in a double acting air cylinder 79 mounted on saidY arm.Entrance of compressed air into the forward end of cylinder 79 moves itsassociated chuck plate 75 toward the right as viewed in Figs. 3 and l1to bring'it into operative engagement with a supply roll R and hold thisroll between it and the associated chuck plate 60 on the arm 14 so thatsaid roll may turn on the chuck plate 75 and with the chuck plate 60 topermit the withdrawal of stock S'frorn said roll as determined by feedmechanism such'as indicated generally at F in Fig. l. Y

Referring to Fig. 12, a supply pipe 80 for compressed vair or othersuitable source of lliuid pressurephas a shut off valve 81 mountedtherein and branch connections 82 and S3 which in turn have'branchconnections 8,4 and S5.

of the arm 174. rlfhe inlet for the other passage 91 connects with anannular groove 94 formed in the sleeve 93 rwhich in turn connects with asection 84h of Vthe other connector 84 Vthat connects with the brakecylinder at the other end of the arm-14. Referring to-Figs. 3 and 4, aportion of each branch connector 85 connects with a separatedrilledrpassage 95 in the shaft 16. The inlet of one of the passages 95connects with an annular groove 96 formed in a sleeve 97 surrounding aportion of shaft i6 and which has an outlet that connects with a section$561 of a branch 85 that connects with the valve 88 for the chuckcylinder at one end of arm 13. The inlet for the other passage 95connects with an annular groove 98 in sleeve 97 which in turn connectswith a section SSI) of the other connector 85 that connects with thevalve 88 for the chuck cylinder at the other end of the arm 13. Each ofthe sleeves 93 and 97 is provided with sealing O- rings 99.

With the above construction, the motor 17 under the coutrolof theoperator is operated to swing the arms 13 and Y:t4 to bring the'chuckmembers at one end of these arms'down to a position where a supply rollR on the i floor can be rolled to a position between the chuckingmembers. The bolts 59 for one or the other or both of the arms 13vand-1li .are loosened so that by turning the screw .or screws'57 thearms 13 and 14imay be moved inwardly to bring them intok approximatechuckingV position. rl`he valve 38 for the chucking member 75 is thenoperated to supply compressed air to the front end of the associatedcylinder 79 at a pressure determined by the setting of the valve 87 tomove the chuck 75 outwardly to bring both chuck plates 75 and 6G intogripping engagement with the stock roll. The motor 17 is then voperatedto swing the arms 13 and 14 to raise the stockroll.-to a feed olposition and the end of the stock started through the feed mechanism F.If Vunder these conditions the stock does not line up properly with thefeed rolls of mechanism F, the turning of the handwheel 53 in theVproper direction will'move the shaft 16 so that the desired alinement issecured. As the stockV Vis fed off of the suspended rotat- Y. ing roll,the operator may from time to time change the Branch connection 33hasr'a manually adjustable prerssure regu'ator valve 83a therein.' Eachbranch conair cylinders supplied thereby swingwith the arms rotary lsupply connections have to be provided between parts of i its branches.Referring to Figs. 3 and 5, a'portion of each branch connector 84connects with a Separate ydrilled pas- Ysage 9.1in the shaft 16. Theinlet for one of these passages 91 connects with an annular groove 92formed in a jps'leeve 93'surrounding a portion of shaft 16 and which hasan outlet that connects with a section 84a of a branch 84 thatrconnectrswith the brake cylinder 71 on one end adjustment of'the valve 86a forthe brake cylinder for Vthe chuck 6i) to decrease' the braking pressureas the stock is used up and also, change the adjustment of the valve 83ato decrease the holding air pressure for the chuck 75, this lastadjustment being dependent upon the Vtype of core used for thesupplyiroll. Where the Vcore is of steel, adjustment of the valve 83amay not be necessary, but if the core is of paper'or no special core isprovided, then adjustment of the valve 83a to decrease the chuckingpressure from time to time as the stock is used up may be desirable.being used up, another supply roll may be positioned ad- Y jacent thelowered end of the other Vends of the arms for connection with itsassociated chucks, and since the preliminary ,adjustment for receivingthe .rolls has been made, itfmay vbe .connected to its chucks bytheoperationof its valve 8S to bring its chucks'il and 75 into chuckingrelation with this second supply roll. l,It is to be noted that thecylinders 79 are'double acting cylinders so that the chuck 75 Vunder thesetting of the valve 38 is moved positively .towardV or away from itssupporting arm 13.

We desire it to be understood that this invention is not to be:v limitedto any particular form or arrangement of partsY except in so far as suchlimitations are included in theappended claims. Y

What we claim as our linvention is:

1. ln a turnover type stock roll supply stand, the combination of a'pairof spaced uprights, a roll supporting shaft having roll carrying Varmssecured thereto, a connection between each end portion of the shaft withan upright comprising a sleeve in which each Y shaft end is journalledYand a Series of at least three radially disposed equidistantlycircumferentially spaced grooved ro'lers engaging the outer surface ofsaid sleeve and individually While this first stock roll is assaeraradially adjustable journals for said rollers mounted on theirassociated upright, one of said rollers engaging the bottom portion ofsaid sleeve, and means for moving said shaft over said rollers andlengthwise of said uprights.

2. A turnover type stock roll supply stand as defined in claim 1,wherein the rollers have their journals mounted on shafts eccentricallyadjustaoly mounted in braciiets on 'their associated upright.

3. In a turnover type stock roll supply stand, the combnation or" a pairof spaced uprights, a roll supporting shaft mounted to turn in saiduprights, a pair of spaced stock rol supporting arms on said shaft, achuck member journalled in one of said arms, a cooperative oppositelysposed clrucking member slidablj, mounted in the other of said arms,oper-- ed rluid pressure operated means for moving said sl ably mountedmember, variable pressure braking means for said chuck member andcontrollable by the operator during an nnwinding operation, and Enidconnections for said uid pressure operated means, said connectionspassing through portions of said supporting shaft and forming a rotaryseal therewith before connecting with said uid operating means.

4. n a turnover type stock roll suppy stand, the combination of a pairof spaced uprights, a roll supporting shaft mounted to turn in saiduprights, a pair of spaced sto-:k roll supporting arms on said shaft, achuck member journalled in one of said arms, a cooperative power openated reciprocatory chuck member slidably mounted in the other of saidarms, tuid pressure braking means for said r'irst named chuck member,operator controlled means for varying the braking pressure of saidbraking means, and uid pressure connections for said braking means, saidconnections passing through said supporting shaft and forming a rotaryseal therewith.

References Cited in the le of this patent UNITED STATES PATENTS 627,665Braun June 27, 1&99 2,055,371 Wood Sept. 22, 1936 2,357,259 Huck et a1.Aug. 29, 1944 2,495,637 Behrens Aug, 13, 1946 2,663,512 Erhardt Dec. 22,1953 2,677,870 Frst May 11, 1954

